711627721061 has 4 divisors (see below), whose sum is σ = 711630912300. Its totient is φ = 711624529824.

The previous prime is 711627721037. The next prime is 711627721067. The reversal of 711627721061 is 160127726117.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 66969676225 + 644658044836 = 258785^2 + 802906^2 .

It is a cyclic number.

It is not a de Polignac number, because 711627721061 - 2²⁶ = 711560612197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (711627721067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1233776 + ... + 1716233.

It is an arithmetic number, because the mean of its divisors is an integer number (177907728075).

Almost surely, 2^711627721061 is an apocalyptic number.

It is an amenable number.

711627721061 is a deficient number, since it is larger than the sum of its proper divisors (3191239).

711627721061 is a wasteful number, since it uses less digits than its factorization.

711627721061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3191238.

The product of its (nonzero) digits is 49392, while the sum is 41.

The spelling of 711627721061 in words is "seven hundred eleven billion, six hundred twenty-seven million, seven hundred twenty-one thousand, sixty-one".